1918928528 has 40 divisors (see below), whose sum is σ = 4075218336. Its totient is φ = 868089600.

The previous prime is 1918928527. The next prime is 1918928537. The reversal of 1918928528 is 8258298191.

It is a self number, because there is not a number n which added to its sum of digits gives 1918928528.

It is not an unprimeable number, because it can be changed into a prime (1918928527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11300 + ... + 62972.

Almost surely, 2^1918928528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1918928528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2037609168).

1918928528 is an abundant number, since it is smaller than the sum of its proper divisors (2156289808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1918928528 is a wasteful number, since it uses less digits than its factorization.

1918928528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51903 (or 51897 counting only the distinct ones).

The product of its digits is 829440, while the sum is 53.

The square root of 1918928528 is about 43805.5764486669. The cubic root of 1918928528 is about 1242.6617570943.

The spelling of 1918928528 in words is "one billion, nine hundred eighteen million, nine hundred twenty-eight thousand, five hundred twenty-eight".